Tunning Safc
18-Dec-2004, 09:01 PM
#1
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Join Date: May 2004
Location: Markham, Richmond Hill
Posts: 403
Tunning Safc
Run now i am running catless straight pipe 2.25 with header and exhaust and i drive a 2001 civic i have intake in it. but at idleing my car goes up and down? how should i tune the safc to make the car smoother..?
19-Dec-2004, 12:42 AM
#3
i was having the same problem after my cam/spring install before i got it to the dyno. I found that playing with the air correction factor (+/- up to 15% helped for me) at narrow throttle at 1000-1500rpm helped steady out the idle.
But as gatherer stated, to tune with an afc you need to go to a dyno and use their wideband o2. Honestly you prolly won't see substantial gains from tuning a safc with just I/H/E.
For the idling issue start with the IACV on the intake manifold, take it off and clean the screen. Then check the FITV on the throttle body. Then check for a vacuum leak with some carb cleaner. Also, check the PCV valve in the IM. Also, check your o2 sensor(s).
But as gatherer stated, to tune with an afc you need to go to a dyno and use their wideband o2. Honestly you prolly won't see substantial gains from tuning a safc with just I/H/E.
For the idling issue start with the IACV on the intake manifold, take it off and clean the screen. Then check the FITV on the throttle body. Then check for a vacuum leak with some carb cleaner. Also, check the PCV valve in the IM. Also, check your o2 sensor(s).
19-Dec-2004, 08:34 PM
#5
if u got it i'd say try it. But i would try to source the idling problem and fix it if i were you.
Although, installing an afc takes minutes and you could spend hours trying to fix and idle problem.
And for how much dyno/wideband o2 time costs and the minimal gains you would get from tuning i would say its not worth it. $150/hr for dyno/wideband o2 time.
Although, installing an afc takes minutes and you could spend hours trying to fix and idle problem.
And for how much dyno/wideband o2 time costs and the minimal gains you would get from tuning i would say its not worth it. $150/hr for dyno/wideband o2 time.
20-Dec-2004, 08:43 PM
#8
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Join Date: Aug 2002
Location: Aurora,Ontario
Posts: 154
Originally posted by zeeman
Then check the FITV on the throttle body
Then check the FITV on the throttle body
And do you have a pic of it on like a B16A?
Sorry still kinda new at the Honda thing.
21-Dec-2004, 06:13 PM
#11
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Join Date: Aug 2002
Location: Aurora,Ontario
Posts: 154
Originally posted by zeeman
its the Fast Idle Thermo Valve. Its on the bottom of the throttle body. Coolant runs through it to warm up the throttle body on a cold start.
its the Fast Idle Thermo Valve. Its on the bottom of the throttle body. Coolant runs through it to warm up the throttle body on a cold start.
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